McLaren will retain its engine supply deal with Mercedes-Benz for at least another six years, despite the German car company's new involvement at Brawn GP.

Mercedes-Benz ended weeks of speculation about its future F1 plans on Monday when it announced that it was buying a controlling stake in Brawn.

Its switch in focus to Brawn had led to speculation that it could turn its back on McLaren entirely when its current deal ended in 2011.

However, following discussions over the last few weeks, McLaren and Mercedes-Benz have reached agreement for an engine supply deal until at least the end of 2015. The terms of the deal mean that there are options for the commitment to extend beyond then too.

With Mercedes switching its main focus to Brawn GP, it has also been announced that the McLaren Group will purchase the 40 per cent shareholding that Daimler AG currently has in the team. This will take place in a phased process to be completed before 2011.